数字农科院2.0

Integrative multi-omics analysis reveals genetic and heterotic contributions to male fertility and yield in potato

文献类型： 外文期刊

作者： Dawei Li;Zedong Geng;Shixuan Xia;Hui Feng;Xiuhan Jiang;Hui Du;Pei Wang;Qun Lian;Yanhui Zhu;Yuxin Jia;Yao Zhou;Yaoyao Wu;Chenglong Huang;Guangtao Zhu;Yi Shang;Huihui Li;Thomas Städler;Wanneng Yang;Sanwen Huang;Chunzhi Zhang

作者机构：

期刊名称： Nature Communications

ISSN： 2041-1723

年卷期： 2024 年 15 卷 1 期

页码：

收录情况： SCIE（2024版）

摘要： The genetic analysis of potato is hampered by the complexity of tetrasomic inheritance. An ongoing effort aims to transform the clonally propagated tetraploid potato into a seed-propagated diploid crop, which would make genetic analyses much easier owing to disomic inheritance. Here, we construct and report the large-scale genetic and heterotic characteristics of a diploid F2 potato population derived from the cross of two highly homozygous inbred lines. We investigate 20,382 traits generated from multi-omics dataset and identify 25,770 quantitative trait loci (QTLs). Coupled with gene expression data, we construct a systems-genetics network for gene discovery in potatoes. Importantly, we explore the genetic basis of heterosis in this population, especially for yield and male fertility heterosis. We find that positive heterotic effects of yield-related QTLs and negative heterotic effects of metabolite QTLs (mQTLs) contribute to yield heterosis. Additionally, we identify a PME gene with a dominance heterotic effect that plays an important role in male fertility heterosis. This study provides genetic resources for the potato community and will facilitate the application of heterosis in diploid potato breeding.

分类号：

  • 相关文献
作者其他论文 更多>>